Improvement of the Selectivity for Hydrogen Peroxide Production via the Synergy of TiO2 and Graphene

• 作者: SUN Yun-Long HUANG Jun-Heng
• 来源期刊: 结构化学
• 年，卷（期）: 2022,（3）
• 页码范围: 85-91
• 页数: 7页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-3299

摘要

To replace the four-electron transferred pathway of oxygen reduction reaction(ORR)by two-electron transferred pathway of ORR(2e-ORR)is desirable for the production of hydrogen peroxide with added-value.The development of electrocatalysts with high selectivity toward 2e-ORR is of great interest but it is still a challenge.Here,we synthesized the graphene-supported titanium dioxide nanocomposite as the 2e ORR catalysts by a combinative process of hydrothermal methods and calcination.Due to the synergistic effect between the graphene with high conductivity and the titanium dioxide with defect sites,the composite TiO2/graphene exhibits the improved selectivity(up to 90％)for oxygen converting into hydrogen peroxide.